Asked if Chigvintsev's toned chest had anything to do with her preference, she joked: "That's not bad either. That helps!"

Ms Murray was also coy about bookmakers closing betting on her son getting engaged to girlfriend Kim Sears during the tournament - and her views on the Scottish independence vote.

She volleyed back questions on both with "no comment" replies.

Elsewhere, British player Naomi Broady's Wimbledon campaign ended with a straight-sets victory for Caroline Wozniacki.

After the match Broady said she apologised to Wozniacki for not being more of a challenge.

"I apologised for not giving her a very good match for her next round.

"She's very sweet, such a nice girl inside and out. She's been through a rough time recently, and I'm super happy for her to go through the next round.

"Even if she had to beat me. Damn her," she said.

Golf star Rory McIlroy announced his relationship with former world number one Wozniacki was over last month because he was not ready for marriage - even though wedding invitations had just been sent out.

The Danish athlete, who has already talked about her love life at the tournament, has spoken again about dating.

"I got a few people out there asking me if I want to date them. I'm like, well, I'm taking my time, taking it easy at the moment.

"I kind of feel like I need to be single for a while," she said.

On day two, Wozniacki was asked about Spanish tennis player Feliciano Lopez, and she smiled and said: "This is very awkward."

Heartthrob Lopez was dubbed "Deliciano" by Judy Murray in 2011.

After two days of attendance at Wimbledon being down on the same days last year, yesterday had an increased number of people in the grounds.

There were 43,680 people on day three - an increase of 2,537 on the same day last year.